Voters in Alaska, California, Colorado, Maine, Massachusetts, Michigan, Nevada, Oregon, Washington and the District of Columbia have legalized small amounts of marijuana for adult use. Colorado and Washington’s measures passed in 2012. Initiatives in Alaska, Oregon and the District of Columbia passed in the fall of 2014, while initiatives in California, Maine, Massachusetts and Nevada passed in 2016. As of Jan. 22, 2018, the Vermont legislature passed adult-use legalization legislation and the governor signed the bill. The measure does not set up a regulatory for system for sales or production. The legislative bodies in Illinois and Guam passed adult-use legalization measures in 2019, bringing the total number of adult-use states to eleven and territories to three as of October 2019.
Federal Considerations—Marijuana is a Schedule I drug under federal law. It is defined as dangerous, has no currently accepted medical use and has a high potential for abuse. This complicates taxation, banking and other areas regulated by federal laws.
Decriminalization—Twenty states and the District of Columbia have decriminalized the possession of small amounts of marijuana for personal consumption. Generally, in these states, possession is treated as a civil or local infraction (or a minor misdemeanor with no jail time), instead of a crime.
Medical Marijuana—With 28 states, the District of Columbia, Guam and Puerto Rico having comprehensive medical marijuana programs and at least another 17 states allowing the use of products with low-THC (the active ingredient in marijuana) for medical purposes, most states have some experience with the legalization of medical marijuana.
Regulations and Taxation—Alaska, Colorado, Oregon and Washington are developing their own unique structures to collect tax revenue, and license and regulate marijuana cultivation facilities and retail shops. The newly approved programs will take some time to finalize their regulations and tax structures.
Impairment While Driving—New cannabis products, unfamiliar new strains, and the fact that people metabolize and retain THC differently than they do alcohol, make it difficult to determine levels of impairment. Currently, Colorado and Washington use a threshold of 5 nanograms or more of THC per milliliter of blood as a measurement for driving under the influence of cannabis.
Public Safety—States are trying to balance regulating a legal marijuana market for adults while preventing access by children. This includes requiring identification checks at dispensaries, prohibiting anyone under age 21 inside dispensaries, requiring child-resistant packaging of cannabis products and prohibiting the use of marijuana in public.
Education and Prevention— States are also supporting research and educating the public about the personal health effects of marijuana, offering prevention programs for adolescents, and working hard to debunk any possible misperception that marijuana is acceptable, legal and safe for children, whose brains are still developing.